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Finding the Fourth Proportional to 21,992.76, 32,994.27 and 7,201.62

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Solution

The fourth proportional to 21,992.76, 32,994.27 and 7,201.62 is: 10,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.76 : 32,994.27 = 7,201.62 : x
  2. Step 2: Convert to fraction form
    21,992.76/32,994.27 = 7,201.62/x
  3. Step 3: Cross multiply
    21,992.76x = 32,994.27 × 7,201.62
  4. Step 4: Simplify right side
    21,992.76x = 237,612,194.72
  5. Step 5: Solve for x
    x = 237,612,194.72/21,992.76
  6. Step 6: Final answer
    x = 10,804.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.